CMBEAMM

Bulk Data Entry Defines a beam element for multibody dynamic solution sequence without reference to a property entry based on markers.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
CMBEAMM	`EID`	`MID`	`M1`	`M2`				`L`
	`A`	`I1`	`I2`	`J`	`K1`	`K2`

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
CMBEAMM	1	2	123	125	0.0	0.0	1.0	5.0
	100.0	833.3	833.3	1485.3

Field	Contents	SI Unit Example
`EID`	Unique element identification number. (Integer > 0)
`MID`	Material identification number. (Integer > 0)
`M1`	Marker identification number. (Integer > 0)
`M2`	Marker identification number. (Integer > 0)
`L`	Undeformed length along the X-axis of the beam. (Real)
`A`	Area of the beam cross-section. (Real)
`I1`	Area moment inertia in plane 1 about the neutral axis. No default (Real > 0.0)
`I2`	Area moment inertia in plane 2 about the neutral axis. No default (Real > 0.0)
`J`	Torsional constant. (Real > 0.0)
`K1`, `K2`	Area factor for shear. Default = 0.0 (Real)

The X-axis of the markers M1 and M2 should always be along the axis of the beam.
The moments of inertia are defined as:(1)
$\begin{matrix} | 1 = /_{z z} = \int y^{2} d A \\ | 2 = /_{y y} = \int Z^{2} dA \end{matrix}$
The beam coordinates must be aligned with the principal axes of the cross-section.
The transverse shear stiffness in planes 1 and 2 are (K1)AG and (K2)AG, respectively. If a value of 0.0 is used for K1 and K2, the transverse shear flexibilities are set to 0.0 (K1 and K2 are interpreted as infinite).
This card is represented as a bar element in HyperMesh.